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The longevity of habitable planets and the development of intelligent life

  • Fergus Simpson (a1)

Abstract

Why did the emergence of our species require a timescale similar to the entire habitable period of our planet? Our late appearance has previously been interpreted by Carter (2008) as evidence that observers typically require a very long development time, implying that intelligent life is a rare occurrence. Here we present an alternative explanation, which simply asserts that many planets possess brief periods of habitability. We also propose that the rate-limiting step for the formation of observers is the enlargement of species from an initially microbial state. In this scenario, the development of intelligent life is a slow but almost inevitable process, greatly enhancing the prospects of future search for extra-terrestrial intelligence (SETI) experiments such as the Breakthrough Listen project.

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Akaike, H. (1974). IEEE Trans. Autom. Contr. 19, 716.
Archer, C. & Vance, D. (2006). Geology 34, 153.
Brasier, M.D. et al. (2015). Proc. Natl. Acad. Sci. 112, 4859.
Carter, B. (2008). Int. J. Astrobiol. 7, 177.
Carter, B. & McCrea, W.H. (1983). Phil. Trans. R. Soc. Lond. Ser. A Math. Phys. Sci. 310, 347.
Clauset, A. & Erwin, D.H. (2008). Science 321, 399.
Clauset, A. & Redner, S. (2009). Phys. Rev. Lett. 102, 038103.
Czaja, A. (2016). In preparation.
Han, T.-M. & Runnegar, B. (1992). Science 257, 232.
Hanson, R. (1998). Unpublished manuscript, 23 September, 168.
Javaux, E.J. et al. (2010). Nature 463, 934.
Lineweaver, C.H. & Davis, T.M. (2002). Astrobiology 2, 293.
Livio, M. (1999). ApJ 511, 429.
Montgomery, S.H. et al. (2013). Evolution 67, 3339.
Payne, J.L. et al. (2009). Proc. Natl. Acad. Sci. USA 106, 24.
Runnegar, B. (1991). Palaeogeogr. Palaeoclimatol. Palaeoecol. 97, 97.
Schopf, J.W. & Packer, B.M. (1987). Science 237, 70.
Schwarz, G. (1978). Ann. Stat. 6, 461.
Simpson, F. (2016). Mon. Not. R. Astron. Soc. 456, L59.
Sugitani, K. et al. (2015). Geobiology 13, 507.
Szathmáry, E. & Smith, J.M. (1997). J. Theor. Biol. 187, 555.
Szathmary, E. & Smith, J.M. (2000). Shaking the Tree: Readings from, 32.
Wacey, D. et al. (2011). Nat. Geosci. 4, 698.
Wacey, D. et al. (2015). Microsc. Microanal. 21, 2091.
Zhu, S. et al. (2016). Nat. Commun. 7, 11500.

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